Description
Specifications Table
Product Name – Potassium phosphate dibasic (dipotassium hydrogen phosphate), anhydrous
Quantity/Pack Size – 500 g
Form – Powder
Grade – ARS, ACS
Application – Buffering, pH regulation, biochemical assays
Product Overview
Potassium phosphate dibasic (dipotassium hydrogen phosphate), anhydrous, is a high-purity chemical compound designed for demanding laboratory applications. This ARS (Analytical Reagent Standard) and ACS (American Chemical Society) grade reagent ensures exceptional purity, with minimal impurities and consistent batch-to-batch performance. The anhydrous form eliminates moisture-related variability, making it ideal for applications requiring precise pH control and buffering capacity. Its fine, free-flowing powder form dissolves rapidly in aqueous solutions, providing immediate availability for experimental setups. The compound’s high solubility and stability across a wide pH range make it particularly valuable in biochemical and molecular biology protocols. Manufactured under stringent quality controls, this reagent meets the exacting standards required for quantitative analytical procedures. The 500g packaging offers an optimal balance between bulk savings and freshness preservation, with a resealable container that maintains product integrity during repeated use. Each batch undergoes rigorous testing for heavy metals, insoluble matter, and other potential contaminants to ensure compliance with international pharmacopeia standards. The product’s long shelf life when stored properly makes it a cost-effective choice for laboratories maintaining consistent reagent inventories.
FAQs
1. What is the exact chemical formula of this potassium phosphate dibasic?
The chemical formula is K₂HPO₄, representing dipotassium hydrogen phosphate in its anhydrous form.
2. How does this compare with the tribasic potassium phosphate?
This dibasic form has one less potassium ion and one more hydrogen ion than tribasic potassium phosphate (K₃PO₄), resulting in different pH properties and buffering capacities.
3. What is the typical pH range when this is dissolved in water?
A 1% aqueous solution typically produces a pH between 8.5 and 9.5, though exact values depend on concentration and temperature.
4. Can this be used to prepare phosphate-buffered saline (PBS)?
Yes, it serves as a key component in PBS formulations when combined with other phosphate salts and sodium chloride.
5. What’s the recommended storage temperature for long-term stability?
Store between 15-30°C in a tightly sealed container, protected from moisture and direct sunlight for optimal shelf life.
